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Abstract

We apply and compare three model-based Q-compensation approaches. The first two approaches rely upon ray-based attenuated traveltime (t*) modelling operators. One is applied prior to migration, the other one is embedded into a Kirchhoff depth migration algorithm (KDM). The third approach is based on wavepath-consistent t* modelling and is embedded into reverse time migration (RTM). Benefits and drawbacks of each of these methods are discussed and illustrated on a visco-acoustic version of the complex BP 2004 model. While ray-based Q-compensation performs well, especially when embedded within KDM, wavepath-consistent Q-compensation within RTM compensates more complex events and seems worthwhile in highly complex media. However, all approaches are prone to noise amplification issues which must be accounted for.

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/content/papers/10.3997/2214-4609.20131851
2013-10-28
2020-04-06
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http://instance.metastore.ingenta.com/content/papers/10.3997/2214-4609.20131851
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